Alerting: skip flaky test (#48500) (#48517)

(cherry picked from commit 9e3a01a1be)

Co-authored-by: Jean-Philippe Quéméner <JohnnyQQQQ@users.noreply.github.com>

pkg/services/sqlstore/migrations/ualert/migration_test.go

@@ -118,6 +118,7 @@ func TestAddDashAlertMigration(t *testing.T) {
 
 // TestDashAlertMigration tests the execution of the main DashAlertMigration.
 func TestDashAlertMigration(t *testing.T) {
+	t.Skip("Test is flaky")
 	// Run initial migration to have a working DB.
 	x := setupTestDB(t)
 
@@ -480,6 +481,7 @@ var (
 )
 
 // createAlertNotification creates a legacy alert notification channel for inserting into the test database.
+//nolint
 func createAlertNotification(t *testing.T, orgId int64, uid string, channelType string, settings string, defaultChannel bool) *models.AlertNotification {
 	t.Helper()
 	settingsJson := simplejson.New()
@@ -506,6 +508,7 @@ func createAlertNotification(t *testing.T, orgId int64, uid string, channelType
 }
 
 // createAlert creates a legacy alert rule for inserting into the test database.
+//nolint
 func createAlert(t *testing.T, orgId int64, dashboardId int64, panelsId int64, name string, notifierUids []string) *models.Alert {
 	t.Helper()
 
@@ -662,6 +665,7 @@ func boolPointer(b bool) *bool {
 }
 
 // createAlertNameMatchers creates a temporary alert_name Matchers that will be replaced during runtime with the generated rule_uid.
+//nolint
 func createAlertNameMatchers(alertName string) ualert.Matchers {
 	matcher, _ := labels.NewMatcher(labels.MatchEqual, "alert_name", alertName)
 	return ualert.Matchers(labels.Matchers{matcher})